JPH02185984A - Production of wear resistant sealing member - Google Patents
Production of wear resistant sealing memberInfo
- Publication number
- JPH02185984A JPH02185984A JP400289A JP400289A JPH02185984A JP H02185984 A JPH02185984 A JP H02185984A JP 400289 A JP400289 A JP 400289A JP 400289 A JP400289 A JP 400289A JP H02185984 A JPH02185984 A JP H02185984A
- Authority
- JP
- Japan
- Prior art keywords
- alloy powder
- base material
- cast iron
- iron base
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 39
- 239000000956 alloy Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 35
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 8
- 239000006023 eutectic alloy Substances 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 3
- 239000011347 resin Substances 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims abstract description 3
- 229910052796 boron Inorganic materials 0.000 abstract description 4
- 238000000137 annealing Methods 0.000 abstract description 3
- 239000002390 adhesive tape Substances 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000005496 eutectics Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 238000005275 alloying Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910017263 Mo—C Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ロータリピストンエンジン用のアペックスシ
ール等の耐摩性シール部材の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a wear-resistant seal member such as an apex seal for a rotary piston engine.
（従来の技術）
ロータリピストンエンジンにおいては、ロータによりロ
ータハウジング内に画成される作動空間をシールするた
め、ロータの頂部に保持されたアペックスシールの先端
部をロータハウジングの内周面に摺接させている。この
ため、アペックスシールの先端部つまり摺動部を硬質化
して耐摩耗性を付与する必要がある。(Prior art) In a rotary piston engine, in order to seal the working space defined in the rotor housing by the rotor, the tip of an apex seal held at the top of the rotor is slid into contact with the inner peripheral surface of the rotor housing. I'm letting you do it. For this reason, it is necessary to harden the tip portion, that is, the sliding portion, of the apex seal to impart wear resistance.
従来は、アペックスシールの摺動部を電子ビーム等で再
溶融した後、急冷凝固させて、この摺動部に耐摩耗性を
有するチル層を形成していたが、近時のエンジンの高出
力化に伴い、従来の方法によって得られるアペックスシ
ールでは耐摩性及び強度面で満足できなくなってきた。Conventionally, the sliding part of the apex seal was remelted using an electron beam, etc., and then rapidly solidified to form a wear-resistant chill layer on the sliding part.However, with the high output of modern engines, As a result, apex seals obtained by conventional methods have become unsatisfactory in terms of wear resistance and strength.
そこで、特開昭６０−２３０９８６号公報に例示される
ように、鋳鉄基材の上面にＦｅ−Ｍ−Ｃ（ＭはＰＳＭｏ
及びＢのうちの一種）からなる合金粉末とアクリル樹脂
とよりなる合金粉末シートを接着した後、鉄系基材及び
合金粉末シートの上面を高エネルギービームのビーム熱
で再溶融してチル化することにより、耐摩性シール部材
の摺動部に高合金よりなる硬化層を得る方法が提案され
ている。Therefore, as exemplified in JP-A No. 60-230986, Fe-M-C (M is PSMo) is applied to the upper surface of the cast iron base material.
After adhering an alloy powder sheet made of an alloy powder made of acrylic resin and an alloy powder made of acrylic resin, the iron-based base material and the upper surface of the alloy powder sheet are remelted and chilled with beam heat of a high-energy beam. Accordingly, a method has been proposed for obtaining a hardened layer made of a high alloy on the sliding portion of a wear-resistant seal member.
（発明が解決しようとする課題）
ところが、鋳鉄基材及び合金粉末シートの上面を高エネ
ルギービームのビーム熱で再溶融すると、鋳鉄基材の上
面端部では入熱量が多くなるので、液相が垂れ落ちて、
鋳鉄基材に肩垂れ現象が発生する。そして、肩垂れ現象
が発生した耐摩性シール部材を加工すると、摺動部にお
いて十分な硬化層が確保できないため、シール部材の耐
摩性が不足してしまう。(Problem to be Solved by the Invention) However, when the upper surface of the cast iron base material and the alloy powder sheet are remelted by the beam heat of a high-energy beam, the amount of heat input increases at the upper end of the cast iron base material, so that the liquid phase dripping down,
A sagging phenomenon occurs in the cast iron base material. If a wear-resistant seal member in which shoulder sag occurs is processed, a sufficient hardened layer cannot be secured in the sliding portion, resulting in a lack of wear resistance of the seal member.
前記に鑑みて、本発明は、摺動部に高合金よりなる硬化
層が十分に形成され、これにより耐摩性に優れたシール
部材が得られるようにすることを目的とする。In view of the above, it is an object of the present invention to provide a sealing member that has a hardened layer made of a high alloy sufficiently formed in the sliding portion and has excellent wear resistance.
（課題を解決するための手段）
前記の目的を達成するため、本発明は、鋳鉄基材の上面
及び側面上部に所定の組成及び厚さを有する合金粉末シ
ートを接着した後、高エネルギービームで再溶融してチ
ル化するものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention adheres an alloy powder sheet having a predetermined composition and thickness to the top and side surfaces of a cast iron base material, and then adheres the alloy powder sheet with a high energy beam. It is remelted and chilled.
具体的に本発明の講じた解決手段は、鋳鉄基材の上面及
び側面上部に、０．５〜３．０重量％のＰ、２．５〜１
５重量％のＭｏ及び０．５〜３゜０重量％のＢのうちの
少なくとも一種と、１．５〜５．０重量％のＣと、残部
のＦｅとからなる共晶合金粉末及びバインダー樹脂より
なる厚さ０゜１〜１．０ｍｍの合金粉末シートを接着し
、しかる後、前記鋳鉄基材及び合金粉末シートの上面を
高エネルギービームにより再溶融してチル化する構成と
するものである。Specifically, the solution taken by the present invention is that 0.5 to 3.0% by weight of P, 2.5 to 1
A eutectic alloy powder and a binder resin consisting of at least one of 5% by weight of Mo and 0.5 to 3.0% by weight of B, 1.5 to 5.0% by weight of C, and the balance Fe An alloy powder sheet with a thickness of 0.1 to 1.0 mm made of the following materials is bonded together, and then the upper surfaces of the cast iron base material and the alloy powder sheet are remelted and chilled using a high-energy beam. .
（作用）
前記の構成により、鋳鉄基材の上面及び側面上部に合金
粉末シートを接着した後、高エネルギービームで再溶融
するので、再溶融時に鋳鉄基材の上面の端部において液
相が垂れ落ちない。このため、鋳鉄基材の上面を機械加
工して耐摩性シール部材を得ると、耐摩性シール部材の
上面である摺動部には、硬化層が十分に形成されている
。(Function) With the above configuration, after the alloy powder sheet is bonded to the upper surface and side surfaces of the cast iron base material, it is remelted with a high energy beam, so that the liquid phase drips at the edge of the upper surface of the cast iron base material during remelting. It doesn't fall. Therefore, when the wear-resistant seal member is obtained by machining the upper surface of the cast iron base material, a hardened layer is sufficiently formed on the sliding portion, which is the upper surface of the wear-resistant seal member.
また、鋳鉄基材に接着される合金粉末シートが前記の所
定の組成を有しているので、耐摩性シール部材の摺動部
に形成される硬化層は耐摩性に優れた高合金層であり、
また、合金粉末シートが前記の所定の厚さを有している
ので、再溶融時に適度の液相が得られ硬化層の高合金化
が促進される。In addition, since the alloy powder sheet adhered to the cast iron base material has the above-mentioned predetermined composition, the hardened layer formed on the sliding part of the wear-resistant seal member is a high alloy layer with excellent wear resistance. ,
Further, since the alloy powder sheet has the above-mentioned predetermined thickness, an appropriate liquid phase is obtained during remelting, and high alloying of the hardened layer is promoted.
（実施例） 以下、本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
まず、粉末粒径１００メツシュ以下であって、０．５〜
３．０重量％のＰ、２．５〜１５重量％のＭｏ及び０，
５〜３．０重量％のＢのうちの少なくとも一種と、１，
５〜５．０重量２６のＣと、残部のＦｅとからなるＦｅ
−Ｍ−Ｃ系の共晶合金粉末９４〜９９重量％及び溶剤で
希釈したアクリル樹脂６〜１ｆｆｌＥ１％とを混練した
後、ドクターブレード法によって厚さ０．１〜１．０ｍ
ｍにシート化した合金粉末シートを４備する。First, the powder particle size is 100 mesh or less, and 0.5 to
3.0 wt% P, 2.5-15 wt% Mo and 0,
5 to 3.0% by weight of at least one of B; 1,
Fe consisting of 5 to 5.0 weight 26 C and the balance Fe
- After kneading 94-99% by weight of M-C based eutectic alloy powder and 6-1fflE1% of acrylic resin diluted with a solvent, a thickness of 0.1-1.0 m is obtained by the doctor blade method.
Four alloy powder sheets formed into sheets are provided.
Ｆｅ−Ｍ−Ｃ系の共晶合金粉末に含有される元素の組成
を前記のように限定する理由は以下の通りである。The reason why the composition of the elements contained in the Fe-MC-based eutectic alloy powder is limited as described above is as follows.
ＭがＰの場合について説明すると、Ｆｅ−Ｐ−Ｃの三元
共晶合金において、ＰはＦｅ、Ｃと結合してリン共晶を
形成し、耐摩耗性を向上させると共に融点を下げる元素
である。配合率については、０、 ５重−％未満では液
相量が少なくなり合金化に寄与せず、また、３．０重量
％を超えると液相過多となって形状を保持し難くなるの
で、０． ５〜３．０重量％の範囲に設定する。To explain the case where M is P, in the Fe-P-C ternary eutectic alloy, P is an element that combines with Fe and C to form a phosphorus eutectic, improving wear resistance and lowering the melting point. be. Regarding the blending ratio, if it is less than 0.5% by weight, the amount of liquid phase will be small and will not contribute to alloying, and if it exceeds 3.0% by weight, there will be too much liquid phase and it will be difficult to maintain the shape. 0. It is set in a range of 5 to 3.0% by weight.
ＭがＭｏの場合について説明すると、Ｆｅ−Ｍｏ−Ｃの
三元共晶において、Ｍｏは基地の強化及び硬質相の形成
に寄与し、特にＦｅ、Ｃと結合して融点を下げる役割を
する元素である。配合率については、２．５重量％未満
では硬質ｔＯが少なくなり、また、液相も少なくなるた
め合金化し難（、逆に１５重量％を超えると液相が多く
なり過ぎるため脆くなって靭性を低下させるので、２．
５〜１５重量％の範囲に設定する。To explain the case where M is Mo, in the Fe-Mo-C ternary eutectic, Mo is an element that contributes to strengthening the matrix and forming a hard phase, and especially combines with Fe and C to lower the melting point. It is. Regarding the blending ratio, if it is less than 2.5% by weight, hard tO will be small and the liquid phase will also be small, making it difficult to form an alloy (on the contrary, if it exceeds 15% by weight, the liquid phase will be too large, resulting in brittleness and poor toughness. 2.
It is set in a range of 5 to 15% by weight.
ＭがＢの場合について説明すると、Ｆｅ−Ｂ−Ｃの三元
共晶において、ＢはＦｅ、Ｃと結合して硬質相を形成す
ると共に融点を下げる元素である。To explain the case where M is B, in the Fe-B-C ternary eutectic, B is an element that combines with Fe and C to form a hard phase and lowers the melting point.
配合率については、０，５重量％未満では液相が少なく
なり耐摩耗性に寄与せず、また、３．０重量％を超える
と非常に脆くなって実用的でなくなるので、０，５〜３
．０重量％の範囲に設定する。Regarding the blending ratio, if it is less than 0.5% by weight, the liquid phase will be too small and it will not contribute to wear resistance, and if it exceeds 3.0% by weight, it will become very brittle and will not be practical. 3
．． Set in the range of 0% by weight.
ＣはＦｅ、Ｐ、Ｍｏ及びＢと結合して基地の強化及び硬
質相の形成をすると共に、リン共晶、モリブデン共晶、
ボロン共晶を形成して合金化に役立つ元素である。配合
率については、１．５重量％未満では低融点品出物の生
成が少なくなり、また、５，０重量％を超えると晶出す
る液相が多くなり過ぎて形状が保持できないので、１．
５〜５゜０重量％の範囲に設定する。C combines with Fe, P, Mo and B to strengthen the base and form a hard phase, and also forms phosphorus eutectic, molybdenum eutectic,
It is an element that forms a boron eutectic and is useful for alloying. Regarding the blending ratio, if it is less than 1.5% by weight, the formation of low melting point products will be reduced, and if it exceeds 5.0% by weight, there will be too much liquid phase to crystallize and the shape cannot be maintained. ．．
It is set in the range of 5 to 5.0% by weight.
また、合金粉末シートの厚さについては、０゜１〜１．
０ｍｍの範囲に設定することにより、再溶融に適度の液
相量が得られ、ビーム熱エネルギーによる凝固肌の粒状
化等が防止されて高合金化が促進されるので、前記の範
囲に設定する。The thickness of the alloy powder sheet is 0°1~1.
By setting it in the range of 0 mm, an appropriate amount of liquid phase can be obtained for remelting, preventing granulation of the solidified skin due to beam thermal energy and promoting high alloying, so it is set in the above range. .
次に、前記の合金粉末シートを鋳鉄基材の上面及び側面
上部に接着した後、非酸化性雰囲気中における３００℃
の温度下で５分間以上保持して脱ろうする。Next, after adhering the alloy powder sheet to the top and side surfaces of the cast iron base material, the sheet was heated to 300°C in a non-oxidizing atmosphere.
Dewax by holding at a temperature of 5 minutes or more.
その後、鋳鉄基材及び合金粉末シートの上面をレーザー
、電子ビーム又はＴｒＧ等の高エネルギービームで再溶
融して、耐摩性シール部材の摺動部に十分な高合金より
なる硬化層を形成する。Thereafter, the cast iron base material and the upper surface of the alloy powder sheet are remelted with a laser, an electron beam, or a high energy beam such as TrG to form a hardened layer made of a sufficiently high alloy on the sliding portion of the wear-resistant seal member.
以下、本発明の具体例及び比較例を第１図及び第２図に
基づいて悦明する。Hereinafter, specific examples and comparative examples of the present invention will be explained based on FIGS. 1 and 2.
まず、具体例１の耐摩性シール部材は次のようにして得
た。First, the wear-resistant seal member of Example 1 was obtained as follows.
すなわち、重量比でＣ：３．５％、Ｓ ｉ ： ２゜３
％、Ｍｎ：０．２％、Ｐ：０．０９％、Ｓ：０゜０１％
、Ｍｇ：０．０３１％、残部かＦｅよりなる組成の球状
黒鉛鋳鉄を、第１図（イ）及び（ロ）に示すような４ｍ
ｍｘ９ｍｍｘ９５ｍｍの直方体の鋳鉄基材１に加工した
。That is, C: 3.5%, Si: 2°3 by weight
%, Mn: 0.2%, P: 0.09%, S: 0°01%
, Mg: 0.031%, the balance consisting of Fe.
A cast iron base material 1 having a rectangular parallelepiped size of m x 9 mm x 95 mm was processed.
次に、重量比でＣ：４．Ｏ％、Ｐ：２．３％、Ｍｏ：１
０％、残部がＦｅよりなる組成であって粉末粒度１００
メツシユ以下の共晶合金粉末９５５重量と、アセトンで
希釈したアクリル樹脂５重量％とよりなる厚さ０．９ｍ
ｍの合金粉末シート２を４ｍｍＸ９５ｍｍの大きさに切
断したものを３枚準備した。Next, the weight ratio is C:4. O%, P: 2.3%, Mo: 1
0%, the balance is Fe, and the powder particle size is 100.
A thickness of 0.9 m consisting of 955 weight of eutectic alloy powder of mesh size or less and 5 weight % of acrylic resin diluted with acetone.
Three sheets of alloy powder sheet 2 having a size of 4 mm x 95 mm were prepared.
次に、第１図（ロ）に示すように、この合金粉末シート
２を前記の鋳鉄基材１の上面及び側面の上部に３０μｍ
の接着テープを介して接着した後、Ｈ２雰囲気中におけ
る３００℃の温度下で６０分間保持して脱ろうした。Next, as shown in FIG.
After adhering through the adhesive tape, it was held at a temperature of 300° C. in an H2 atmosphere for 60 minutes to dewax.
次に、同じく第１図（ロ）に示すように、鋳鉄基材１及
び合金粉末シート２の上面を、レーザービーム３により
、出力３，５ＫＷ、加工速度０２ｍ／分、ビーム径５ｍ
ｍの照射条件で再溶融して、第１図（ハ）に示すように
鋳鉄基材１の上面部に高合金化された硬化層４を得た後
、５５０℃の温度下で歪取り焼鈍を行なった。その結果
、この耐摩性摺動部材の断面硬さはＨｖ７６２であった
。その後、鋳鉄基材１の上面部を機械加工して第１図（
ニ）に示すような耐摩性シール部材を得た。Next, as shown in FIG. 1 (b), the upper surfaces of the cast iron base material 1 and the alloy powder sheet 2 are processed using a laser beam 3 at an output of 3.5 KW, a processing speed of 02 m/min, and a beam diameter of 5 m.
After remelting under the irradiation conditions of m to obtain a highly alloyed hardened layer 4 on the upper surface of the cast iron base material 1 as shown in FIG. I did it. As a result, the cross-sectional hardness of this wear-resistant sliding member was Hv762. Thereafter, the upper surface of the cast iron base material 1 is machined as shown in Fig. 1 (
A wear-resistant seal member as shown in (d) was obtained.
また、具体例２の耐摩性シール部材は次のようにして得
た。Moreover, the wear-resistant seal member of Specific Example 2 was obtained as follows.
すなわち、重量比でＣ：３．６％、Ｓｉ：２゜２％、Ｍ
ｎ：０．３５％、Ｐ：０．１５％、Ｓ：０．０３％、Ｃ
ｒ：０．４５％、Ｃｕ：０．９７％、Ｍｏ：１．５１％
、Ｎｉ：０．９９％、Ｍｇ ：０．００９％、Ｖ：０．
１５％、残部がＦｅよりなる組成の合金鋳鉄を、具体例
１と同様４ｍｍＸ９ｍｍＸ９５ｍｍの直方体の鋳鉄基材
１に加工した。That is, in terms of weight ratio, C: 3.6%, Si: 2°2%, M
n: 0.35%, P: 0.15%, S: 0.03%, C
r: 0.45%, Cu: 0.97%, Mo: 1.51%
, Ni: 0.99%, Mg: 0.009%, V: 0.
An alloyed cast iron having a composition of 15% Fe and the balance Fe was processed into a rectangular parallelepiped cast iron base material 1 of 4 mm x 9 mm x 95 mm in the same manner as in Example 1.
次に、具体例１と同様の合金粉末シート２を準備し、こ
の合金粉末シート２を具体例１と同様に鋳鉄基材１の上
面及び側面の上部に接着した後、Ｈ２雰囲気中で脱ろう
し、しかる後、具体例１と同様に再溶融して高合金化し
、さらに、歪取り焼鈍を行なった。その結果、この耐摩
性シール部材の断面硬さはＨｖ７８９であった。Next, an alloy powder sheet 2 similar to that in Example 1 is prepared, and this alloy powder sheet 2 is adhered to the top and side surfaces of the cast iron base material 1 in the same manner as in Example 1, and then dewaxed in an H2 atmosphere. Thereafter, in the same manner as in Example 1, it was remelted to form a high alloy, and then subjected to strain relief annealing. As a result, the cross-sectional hardness of this wear-resistant seal member was Hv789.
また、比較例１の耐摩性シール部材は次のようにして得
た。Moreover, the wear-resistant seal member of Comparative Example 1 was obtained as follows.
すなわち、重量比でＣ：３．５％、Ｓｉ：２゜３％、Ｍ
ロ二０．４％、Ｐ：０，２％、Ｓ ： Ｏ。That is, in terms of weight ratio, C: 3.5%, Si: 2°3%, M
Roni 0.4%, P: 0.2%, S: O.
０２％、Ｃｒ：０．５％、Ｃｕ：１．０％、ＭＯ＝１．
５％、Ｎｉ：１．０％、Ｍｇ：０．０１％、Ｖ：０．２
９ｇ、残部がＦｅよりなる組成の合金鋳鉄を、具体例１
と同様に４ｍｍＸ９ｍｍＸ９５ｍｍの直方体の鋳鉄基材
に加工する。02%, Cr: 0.5%, Cu: 1.0%, MO=1.
5%, Ni: 1.0%, Mg: 0.01%, V: 0.2
Specific example 1: 9g of alloy cast iron with a composition of
Similarly, a rectangular parallelepiped cast iron base material of 4 mm x 9 mm x 95 mm is processed.
次に、合金粉末シートを接着しないで、合金鋳鉄基材の
上面を電子ビームにより、ビーム電流５５ｍＡ、送り速
度１５０ｍｍ／分、レンズ電流１．３Ａの照射条件で再
溶融し、その後、５５０℃の温度下で歪取り焼鈍を行な
った。その結果、この耐摩性シール部材の断面硬さはＨ
ｖ７８０であった。 さらに、比較例２の耐摩性シール
部材は次のようにして得た。Next, without adhering the alloy powder sheet, the upper surface of the alloy cast iron base material was remelted using an electron beam under irradiation conditions of beam current 55 mA, feed rate 150 mm/min, and lens current 1.3 A, and then heated to 550°C. Strain relief annealing was performed at high temperature. As a result, the cross-sectional hardness of this wear-resistant seal member is H
It was v780. Furthermore, a wear-resistant seal member of Comparative Example 2 was obtained as follows.
すなわち、第２図（イ）及び（ロ）に示すように、具体
例１と同様の鋳鉄基材１及び合金粉末シート２を準備し
、鋳鉄基材１の上面に合金粉末シート２を接着した後、
具体例１と同様に脱ろうし、しかる後、具体例］と同様
にレーザービームで再溶融した。その結果、第２図（ハ
）に示すように、鋳鉄基材１の上面の端部に肩垂れが発
生した。その後、この鋳鉄基材１の上面部を機械加工し
て第２図（ニ）に示すような耐摩性シール部材を得たが
、前記のように肩垂れが発生したため、耐摩性シール部
材の摺動部に十分な硬化層が得られなかった。That is, as shown in FIGS. 2(a) and 2(b), a cast iron base material 1 and an alloy powder sheet 2 similar to those in Example 1 were prepared, and the alloy powder sheet 2 was adhered to the upper surface of the cast iron base material 1. rear,
It was dewaxed in the same manner as in Example 1, and then remelted with a laser beam in the same manner as in Example 1. As a result, as shown in FIG. 2(c), shoulder sagging occurred at the end of the upper surface of the cast iron base material 1. Thereafter, the upper surface of the cast iron base material 1 was machined to obtain a wear-resistant seal member as shown in FIG. A sufficient hardened layer could not be obtained on the moving parts.
以下、本発明を評価するために行なったテストについて
説明する。Tests conducted to evaluate the present invention will be described below.
このテストは、前記の具体例１．２及び比較例１の耐摩
性シール部材を摩耗テスト用のテストピースに加工し、
Ｃｒめっきをした相手材との間で乾式摩耗テストを行な
ったものであって、加重＝５Ｋｇ、摺動速度：１５ｍ／
秒、テスト時間：１０分間、潤滑条件ニドライのテスト
条件で行なった。In this test, the wear-resistant seal members of Specific Example 1.2 and Comparative Example 1 were processed into test pieces for wear tests.
A dry abrasion test was conducted with a Cr-plated mating material, load = 5 kg, sliding speed: 15 m/
Test time: 10 minutes, lubricated conditions, dry test conditions.
その結果は、第１表に示すとおりであって、相手材の摩
耗量については大差は無いが、耐摩性シール部材の摩耗
量については具体例１及び２のものは、比較例１のもの
と比べて摩耗量が著しく少なかった。The results are shown in Table 1, and although there is no significant difference in the amount of wear on the mating material, the amount of wear on the wear-resistant seal members in Specific Examples 1 and 2 is different from that in Comparative Example 1. The amount of wear was significantly less compared to the previous one.
（以下、余白）
（発明の効果）
以上説明したように、本発明に係る耐摩性シール部材の
製造方法によると、鋳鉄基材の上面及び側面上部に合金
粉末シートを接着した後、高エネルギービームで再溶継
するため、再溶融時に鋳鉄基材の上面端部から液相が垂
れ落ちず、また、前記合金粉末シートが所定の組成及び
厚さを有しているため、シール部材の摺動部に耐摩性に
優れた高合金よりなる硬化層が十分に形成されるので、
耐摩性の向上したシール部材が確実に得られる。(Hereinafter, blank space) (Effects of the invention) As explained above, according to the method for manufacturing a wear-resistant seal member according to the present invention, after adhering an alloy powder sheet to the upper surface and upper side surface of a cast iron base material, a high-energy beam Since the liquid phase is not dripped from the upper end of the cast iron base material during remelting, and since the alloy powder sheet has a predetermined composition and thickness, the sliding of the sealing member is prevented. Since a hardened layer made of a high alloy with excellent wear resistance is sufficiently formed in the
A sealing member with improved wear resistance can be reliably obtained.
第１図（イ）〜（ニ）は具体例１の耐摩性シール部材の
製造方法の工程を説明する図であって、（イ）は側面図
、（ロ）は斜視図、（ハ）及び（ニ）は断面図、第２図
（イ）〜（ニ）は比較例２の耐摩性シール部材の製造方
法の工程を示す図であって、（イ）は側面図、（ロ）は
斜視図、（ハ）及び（ニ）は断面図である。
１・・・鋳鉄基材、２・・合金粉末シート、３・・・レ
ーザービーム。1 (a) to (d) are diagrams for explaining the steps of the manufacturing method of the wear-resistant seal member of specific example 1, in which (a) is a side view, (b) is a perspective view, (c) and (D) is a sectional view, and FIGS. 2(A) to 2(D) are views showing the steps of the manufacturing method of the wear-resistant seal member of Comparative Example 2, (A) is a side view, and (B) is a perspective view. Figures (C) and (D) are cross-sectional views. 1... Cast iron base material, 2... Alloy powder sheet, 3... Laser beam.
Claims (1)
０重量％のＰ、２．５〜１５重量％のＭｏ及び０．５〜
３．０重量％のＢのうちの少なくとも一種と、１．５〜
５．０重量％のＣと、残部のＦｅとからなる共晶合金粉
末及びバインダー樹脂よりなる厚さ０．１〜１．０ｍｍ
の合金粉末シートを接着し、しかる後、前記鋳鉄基材及
び合金粉末シートの上面を高エネルギービームにより再
溶融してチル化することを特徴とする耐摩性シール部材
の製造方法。(1) 0.5 to 3.
0 wt.% P, 2.5-15 wt.% Mo and 0.5-15 wt.%
3.0% by weight of at least one of B, and 1.5~
A eutectic alloy powder consisting of 5.0% by weight of C and the balance of Fe and a binder resin with a thickness of 0.1 to 1.0 mm.
A method for producing a wear-resistant sealing member, which comprises adhering the alloy powder sheets, and then remelting and chilling the cast iron base material and the upper surface of the alloy powder sheet using a high-energy beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP400289A JPH02185984A (en) | 1989-01-10 | 1989-01-10 | Production of wear resistant sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP400289A JPH02185984A (en) | 1989-01-10 | 1989-01-10 | Production of wear resistant sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02185984A true JPH02185984A (en) | 1990-07-20 |
Family
ID=11572789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP400289A Pending JPH02185984A (en) | 1989-01-10 | 1989-01-10 | Production of wear resistant sealing member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02185984A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100266881B1 (en) * | 1997-07-29 | 2000-10-02 | 이종훈 | Process for surface-alloying on plated metal or alloy substkates, or for the surface-repairing of damaged(or failed) metal or alloy substrates by using a laser beam |
| CN110184600A (en) * | 2019-06-20 | 2019-08-30 | 中北大学 | The preparation method of titanium alloy surface low stress high-temperature oxidation resistant coating |
-
1989
- 1989-01-10 JP JP400289A patent/JPH02185984A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100266881B1 (en) * | 1997-07-29 | 2000-10-02 | 이종훈 | Process for surface-alloying on plated metal or alloy substkates, or for the surface-repairing of damaged(or failed) metal or alloy substrates by using a laser beam |
| CN110184600A (en) * | 2019-06-20 | 2019-08-30 | 中北大学 | The preparation method of titanium alloy surface low stress high-temperature oxidation resistant coating |
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